When this spell is cast, roll a d20, adding your proficiency modifier. If the roll is above the target’s Challenge Rating, for every point above the target’s Challenge Rating, roll a d8. Adding all the results, the total is equal to how many Spell Points can be used.

The table below shows how many Spell Points can be expended to magically stop the target from using the associated spell slot or cantrip, for the duration of the spell.